Which of the following is true of performance standards? a. performance standards should be established before the work is performed. b. only numerical performance standards can be established. c. performance standards should be established while the work is being performed. d. only nonnumerical performance standards can be established.

alternative A.

Explanation: Performance standards establish what are the starndards a company is persuing while offering a service or a product, for example. It can be a number of products that must be produced per day, how well or badly rated it is going to be according to their clients, etc. It is meant to optimize the production and maximize the profit. Therefore, it can't be applied while the work is being done, it has to be planned as any other selling strategies.

a manufacturer of printed circuit boards uses exponential smoothing with trend to forecast monthly demand of its product. at the end of december, the company wishes to forecast sales for january. the estimate of trend through november has been 200 additional boards sold per month. average sales have been around 1000 units per month. the demand for december was 1100 units. the company uses α = 0.20 and β = 0.10. make a forecast including trend for the month of january.

answercontrol is returned to method c;